/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you under the Apache License, Version 2.0 (the
    * "License"); you may not use this file except in compliance
    * with the License.  You may obtain a copy of the License at
    *
   *   https://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  package org.apache.bcel.classfile;
  
  import java.io.DataOutputStream;
  import java.io.IOException;
  
  /**
   * An annotation's element value pair.
   *
   * @since 6.0
   */
  public class ElementValuePair {
  
      static final ElementValuePair[] EMPTY_ARRAY = {};
  
      private final ElementValue elementValue;
  
      private final ConstantPool constantPool;
  
      private final int elementNameIndex;
  
      public ElementValuePair(final int elementNameIndex, final ElementValue elementValue, final ConstantPool constantPool) {
          this.elementValue = elementValue;
          this.elementNameIndex = elementNameIndex;
          this.constantPool = constantPool;
      }
  
      protected void dump(final DataOutputStream dos) throws IOException {
          dos.writeShort(elementNameIndex); // u2 name of the element
          elementValue.dump(dos);
      }
  
      public int getNameIndex() {
          return elementNameIndex;
      }
  
      public String getNameString() {
          return constantPool.getConstantUtf8(elementNameIndex).getBytes();
      }
  
      public final ElementValue getValue() {
          return elementValue;
      }
  
      public String toShortString() {
          final StringBuilder result = new StringBuilder();
          result.append(getNameString()).append("=").append(getValue().toShortString());
          return result.toString();
      }
  }